- Color: colorless, light yellow, light pink
- Hardness: 7
- Refractive index: 1.63 - 1.64
- Density: 2.98 - 3.03
- Chemical composition: Ca(B2Si2O8)
- Crystal structure: Orthorhombic
- Origins: USA, Mexico, Brazil, Germany, Switzerland, Sri Lanka, Burma, Madagascar, Japan.
Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.